I Zw 1: Decomposition of the nearby QSO host J. Scharwächter, A. Eckart, S. Pfalzner, J. Moultaka, C. Straubmeier and J. G. Staguhn A&A, 405 3 (2003) 959-967 Published online: 30 June 2003 DOI: 10.1051/0004-6361:20030678